Norton Internet Security main window GUI not showing at all (Windows 7 64)

Hi,

 

since about a couple of weeks, I can't get NIS main window to be displayed anymore. It's just transparent, or sometimes it looks like a small white rectangle.

 

I have tried to uninstall/reinstall the product. I have also tried to run the removal/reinstall tool. But the issue is still there.

 

Now, I can't even activate the product as the activation window is invisible too.

 

I wonder wether this hadn't happen since I have installed the latest Windows 8 SDK (which should normally be compatible with Windows 7).

 

Any idea ?

 

Thanks,

Greg

 

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